Screening apparatus.



G. H. FRASER.

SCREENING APPARATUS.

APPUCATIGN mm nic.4.1915.

l 202,378. Patented Oct. 24, 1916` 4 SHEETS-SHEET I.

oooogloooo G. H. FRASER. SCREENING APPARATUS. Arme/mon man uic. 4, 1915.

Patented Oct. 24, 1916.

INVENTOR G. H. FRASER.

SCREENING APPARATUS.

APPucATxoN FILED Duc. 4. 1915 WITNESSES G. H. FRASER.

SCREENING APPARATUS.

APPLlcAnoN man Dec. 4, :915.

WITNESSES of the casing being inclosefl by GEORGE HOLT FRASER, OF NEW YORK, N. Y.

SCREENING APPARATUS.

1 ,20eme Specification of Letters Patent.

Patented Oct. 24, 1916.

Application led Becember 4, 1915. Serial No. 66,995.

Yin/f/ wirf/n if muy concern.'

llc it known that l'T Hconor Ilm/r lfnisifzn, o citizen ol' the` United Sintes olf Aim-Brien, rcsirlinfl' in The borough o? lroolflm, monty of lfingr. cli; und filmtv oi' New i fir-lf. ,ii-.iw inventor. 'vilain ne final useful linlzrovcnicnls ii M i'u=\'\iiin; ."ippnrzitus, ol' which the` following iff n spefiiirntion.

This imwniion relatos to minimums for screening Course from tine nmlrlinl, and :linie to provide 'erlnio imirox'elrwnts ther in eslww l!) :simili-able to inclined .lfcreffile 'To t end the invention provides cci min imln'orenients in construction which. will be lnfrcinniter more fully sot forth with reference to the :zreonip:toying drawings. in wliielam- Figure l is n eide elevation of the lire ferreil form of my improved screen: Fig. 2 is n reni* elevation thereof partly broken :Hwy to show sections on diilcrent pilules; Fig. Sl is :i Vertical eroi: s-Se|1tion cut on the line 3MB in ligx. 3: Fig". L :i longitudinal section cui on the line` Ie- 4 in Fig, 2%; Fig. is n .similar suction mit on the line` im-5 in Fi i. il; and lfigs, (i and l :irc enl'lz'ged frugnien licita showing: i corner of (me of the screen members. lfi.- .Q und il nre enlarged detail views of the lmocker. showing the under plate preferably used for limiting excessive lost motion of the hmnmer bars.

Referring to the drawings, A is the casing: als :i whole, B are the screen members there in, C is the feed hopper'. D is the coarse outlet, E is the fine outlet, 'F is the drive pulley, and (il are the vibrators.

The casing is a tubular member hinged :it a to feet und ndjustnbly connected at o to legs a so that it can be tilted to vary the inclination of the screen. It is: preferably made entirely of metal, and in its preferred form consists ofeast iron side pieces e which are united by braces f, f7, nnd, the top removable hinged doors j, and the bach by n hinged bottom Z1, the front being closed by avertically sliding door l, and the bottom being open for the outlets D and E. The upper part of the is formed. with front and rear doors m which inclose the distributing conveyer, and with a reversible top plate n, which, with the hopper C, can be removed sind placed'so as to locate the hopper at either side of the machine.

The side' pieces f: :ire preferably `formed with c lower bod;` portion ff and :1n upper heini portion p with :1n intermediate flange y. und with lie-.wing supports 1', all in one intr-,gral cnhting. The body portion 0 has :l lower oigo .Lv inclined downwardly relative to its upper edge, LindV against which the baci; or bottoni closes. The oppor edge has c flange i'. against which the top covers j Set to close the top of the body, which flange has notches or recesses u u to receive correspond ing projections if v on the covers, so that the latter will not slip down in case either end is raised,

On its inner face each side is provided with n Shoulder or flange H against which the screen member rests, and by which the hitter is arrested in its upward movement, 'which shoulder is preferably a part of the casting.

internal flanges w are provided on the bend /l for supporting cross bars which, with :i plate ff resting on them constitute the trough for the distrihntin, 4 oo i'iveyer I. Adjustable or tilting,Ir feed plates J are fastened on the front und rear siflesoffthis trrmgh, and nre tilted to the angle necessary to cause the conveyer to feed nmterinl fromY the trough over `the edge of the plateS in an approximntely uniform stream from end to end, according to which direction the conveyer is driven. The feed plates have outbent ears a which are engaged by adjusting bolts a. for adjusting the angulnrity of the plates.

The conveyor has `a driving shaft K, on one end of whichv is mounted the drive pulley F and on the other end of which is a. ank 2 or other provision forv operating the agtating mechanism for the screen.

The hop er C has flangesfc depending at each side otheconveyer to reventa material from shooting upwardly be ore it fallsirl the trough, :md 1t has a transverseilange on which the top n is fastened.

Beneath the conveyer is a `deife L over the screen member,and op a reverse inclined feed plate from the front rearwardly, beneath the ne this. is,

` 'frifillte extendingA from the backldowne'ircrdlyy extending" ing il lo llii- .-li:il`t` ibliniy lm liltirr ill1 Illini4 l'icviiig llifl giving'. ThiA spring' hui :l :mi li'zil lwm im-limi vinili-living' lhi.- shaft limi milliwiiili): Ai iixliliiig! in giiriliil. il tu lump. imei; vll l'irii'il thv rslmfi. rui thfil uni' liiii'iffli'vi in liiiviiimiil fir i'vpluwil within@ iwi-C+ iiiiiig' imiiiiiiil lil' tlm hull1 The www.. iw pl'llerzilily ilmiflv nl' imtviiipwiw will :iwi mi limi they sin hr inuit lv .sin iii@ hmm milie iii linfa-king. zixial mma li whim iii lust motion in thv vhiiiiiw lh v wiim lhi'w tu iisi'illzite ilidvpmiilvnily iiiiliifimitlv lli yiw ii quick ati-olie lui-iufm* lha 'Limp Llizit {hiffrunk is imaging.: this liv-il -vii'ui :mil the roar fifeil platw` are tiltml iiiitil lili(l niatvrial loiii-y :mrow inw or the` other in a ilnil'orin filtri l'roni nl m iinil. Thon inalirial is: i`iil to ilii limpia-i; thiA 'oni'v'vir will tht-ii ilisti'iiililc' i iviili' finto within' the rear 'tiiiil iiliitv l. isi' lim liiiiit lim-rl jilnfif M. nttiii'rli'ig to hii ilii'i-f'iiwii ont rotation ot' thil winiai'wi` lt thv l'iwl liilli, into tlm :irrt-on ilatiill il iiii'l loii liiiiliii'-iriliv iliiwii llii. latten' :iiiil licl iliw'liargvll onli tlm othm" plato l.. iloii'n iiliifl: it will lloii' into tlm ravie-vii. 'l`lii fowl iiliili li rata ii thv fic-reign nii-nilii-r :intl iy slightly vibrate-(l tliigrifli'i', thus insiirirn.r troffloii iii' tlir iiiaoiizil (loWn tliii` pinto. Thr-wei ailjiigiin'mitn haring been mario. tliel inilinatiiin ol' thv holly anil screen int-nilwr will lni'aiioil. iiiitil thi ilrwirwl intfiiia of aritwning if: otl'vi'rih by raising` or loii'oring the liiii'li' iiil ail. llit ;i]iiii:iin` lji` illfdiiigf' ill bolt fi in an), ol' tlm holo- /f riirzieflpiiiiilim' to tht* iiiflniitiiiiii ilofiii'ifl. This'V will oeuil lat:t tho iiiiili' rii'oiiiifl thi holt a, anil iii this :minimi 1in :ii'g'iiamont can he i'arioil from Ai, normal iniiliiiation of l5 ilog'roifs as niiirh iii-5 ilraiiel. Win-ation of the screen. will than liv :uliiisiteil by v supporting `iin-ii and i@ and by hond intl; tho spring' knot mrs ff iintil they hit tht` requisite blow. lnr reen supports should lio adjusted to lli-limi y noise the screen so that the lfnoiln-ral will oasily vibrate it. anil so that its.` iipii'aril inoi'omtints will be arwett-il by tlm iiiioiililiirr H. When those ath iiislnwnts haii linien properly made the niaivi'iiil will fioii lovin the sst-retin surface in a thin filmA` unil the :agitation will prevent clogging" of thee intarsticrs, and will facilitsitttin (lon oi thv roarse particles flown owitlw fifriiiii :imi discharge, of the Filion tliriiiiglli thi sfi'ooii. The fines falling through lla.A afweer; will flow do'iin the stm-por inflinvil liiittiini f to tho tino outlet lil` thoy m'oatir ini lination of this bottoni in siii-iii;r a gran-iti' low own when the adjust-- inuit is iif'li that thi screen intemho'r too flat for a gravity How without vibration.

fliifriiliiii: ol tho (liiftriiniting conveyor muy lio oliwi'i'oi thriiiigl'i either the front or rear (loom anil the lmockers and Seremi a0- tion ma)Y lit oliisi-iii'eil through the top (loorif` j. Tho .#'ffi'oon ramos may he removed, by .sliding them liarli'ii'artlly ont through the liacli door q or forwardly through thiJ front iloor Z a fter their clamping Sort-ws r anil Clampingr platen s have been'reinoveth or access to their rear may be had lili' turniinn down the bottoni door or they inaii be relrfiiserl from their spring supports and tin-uned flonin on the bottom door and taken oiitanil replaced while in this position.

lt the material being screened is damp, it may bt iientilatul or dried by tilting up the lower edge of on@ top door j. and opening the back floor f/g thus permitting a Current of air to flow backwartlly through the casligf'i'iteiiing or loosening ite' :iiiil :aiivningi thil appui-alim ina)` iw iiit scri-munt" it ainiply rifinoiinti; this shafts :iiirl hair wir nortions'. and revising; tlnfir positions life4 foro again awonihlingir thi-ni,

Th1-i, siiooii l'f'aiiiins van lio mail:l iiiitirifli eii invtalA :inil lliiVA cloth Cnn finally lairlainjiril )ai mani thc ionggitiifliinil liarsy anil tlm', origini-lli' atri-Uhm! hy tin-ning tlm liar, a rctainiil in pmitiiin'liy fastening the liars in the rm pim-un. ll'itli thipropifr iiiiltli of flotli its,V .iioli'agu 'will aixsist in in'iivntii it from ,Slipping liotiii-oii thi; haii-i. Cioni; pieiws in coninnrtion with the lli their ootteim are in the nature of arlj'iistaliltI ratchet connections, for which an;y ratoliot or other suitable adjusting means may' lm substituted. The wings of the channel irons engage the longitudinal inomliars of with screen and prevent inwartl springing bv tween the cross pieces. i

It will be seen that this iniiention priL vides' means whichiciin he readily nnil ail-4 i'antaieoiisly availed of` anil il will he iinVv derStood that the invention is not liinitwil to the particular details, of arrangoinvni. (.-oiisti'iiftion or LUniliinatUn notl forth ac; con stitnting its Vprelierrml foi-ni, sint-f the iinproi'oinonts; 'an be oin'iliiyril in whole or iii part according; to suoli ii'ioiilifit-atiom: or adaptations tho jiitlg'iiient of thoso islfnlluil in the art mali' dictato, without depart. from the Spirit of the invention.

In lieu of thv rigiil flange as n stop, stop mits may lit4` adjuntalili,` screwed on the. :airing roll# aai Shown.

llr'li l iiaiiA lii-iriin shown :intl described the femlifi' anni .lista-butts sot forth the Sallie* is not i-laiiiii'i in this ai'iplioation, bring tlm subjuct matter ot' i'liiiins Serial No. -lil,ii(ll. tileil September 24, 190B.

I claim :is niv invention l. ln screening apparatus, an inclosecl inifl'iieil screen in combination `With a casing in which it is inolosfl. and iloii'nwardly actinnr jarringr iiieans above said screen for viiii-ating it.y said casing having a tlotacliahly carried bottom Wall independent of and of greater inclination than the screen,

L". An inclined vibrating svi-een, in combination with means for jarringr Said screen, :intl :i casintr inclosing it having a hinged bottom wall hinged to its lower part.

in nl v application Il, An inrloseil inclined sereein in combination with an adjustable raising inrlosing it` means` for adjusting' thil singularity ot' .sind easing, adjustable moana vieldiugly sup porting the uri-een in said raising, atopor aiutarvi: for arresting; upward movement. ol' said .Herren in said easing and means for downwardly jarring! :said :su een.

-|Y. A oasingvlfor a screen ooneisting of aide plates havingan inulined top edge, a bottom edge ol greater inrlination than said top edge, an internal shoulder. bearingr brackets, and ilelieetor flanges, in uolnbination with ay .avi-ron member within said easing. epringe )fieldingl'vr drawing `aid :screen member agrainsil said shoulden leed plates seated ou said flanges;` a distributor abow Said leed plates. and vibrating mechanism carried b v said beni-iurr brackets.

i. ln arri-rouen a srrevn member uousiating ol au inrlined frana. :iprinn's reacting againnt and supporting said frame in an upwardly and forwardly lirnotion, and sin'ings reacting againet and sulaioriin;r said l'ranie tranevera-M u ol'l said first mentioned sin-ings and in an upwardl;r and reaiwarllly di`V reelioir H. ln screening devices,- :i :screen nien'lber voinprieing a sri-een eloth in combination with adjustable longitudinal l'nrnilnn's be tneen which the edges olA l"aid rloth are clamped. cross members niombly holding said longitudinal member` anal l1. and means for adjueting `will lony'umlin-fl nienibere4 roliiiiwlv to said einer; in=\i|'il\e.r;V to tighten and rlotb latrrullv nl' the Len meunier.

T. ln 1 ibi-ating ooi'ilsi :i lvsiorki v @insist ingr of a passim .at-liking nufnilie' .unl :in oscillating parl? Vfor moer-3,; l toward and l'roui ihe erreen amd pari ,'nl nwiafher hw ingr a lor-1t motion ronnectviova.

H, ln a separator. the rwnbination with in nirlioed @creen ol' fniile'iendenl ioogolj-,f nufanurll y `Lril{ln;.; inenibei above said Herren `or avtiug: iliirfnivardly against it 1ro jar in, wsrlntlng unanime mounted on fixed :axes alan ,smid srl-ern anl acting' on said Sl1il\, ing; membri-xy to minor llieni to rauw-,unfneig." im' :Pannen and revolving means for mrinffinj.; said o .illatuig uieiubere.

Si. ln a separaten the ron'ibination with an inclined screen4 of swinging stv| rkei-:f: hinged on fixed axes above earl einen and acting: poreiiesively downwardly lo'vvaid .liv` latter to jar i`L means looselyr migagnig; .wid strik i-ra` for lifting them. sind :i revolving pari operating said liftingr DionneY 1U. In a enzimi-atm', llie `oxnbinaonn willi an inclined screen, of indel'rendeot lnofwly mounted nnuxiliors-or strikers above aid ,en reen for jarring it oseilaiiiuf mean,- sn'iuging on :i liXed af ,duw il Firmen for iiiwratiiig Said Sti-lione. and a ,re oli ing part operating said oscillating menne l1. ln n separator, the combination with :iu inclined .ei-reen ot' impart menilwrrs or Strikers :ii-ting;r prrcussively downvvarilliy on aid screen to jar il, swinging or osrillalvinej parte pirotoil on n lixerl axis above raid. srreen and oporatiingr Said striker-e, means 'l'or varyingy the stroke ol' han! strikers. and a revolving parti operating said osrillatingr means,

'12. ln a sriiarator. the Combination with an inclined Servon. of a springinipelled inipart member abovfl and acting 'pereussivelv on Said Sereen to jar it. a suingingr member oscillating' on a fixed axis above aid sscroeii und acting on said impart member or sti iker. and a revolving part VFor operating said wringing member.

13. ln i1 separator, the rfoinhiliation with :in inelined screen f -oinprieine` wire mesh .sf-reen Cloth` in oomlnnaton with a lramo therefor comprising longitudinal and eros@ ineinbern: to which Said Cloth is attached.y Awild Crow members movably holdinr said longitudinal members adjustably relatively to .said @one members, and IneamA for poisitivelyl adiust ing said linigitudinal members For :uljuf-iiing the tension of the said arreen cloth.

Ill, ln a separator, the combination. with a @einen comprisingr ivoren mesh :screen cloth. of a screen trame con'iprising erosf; members to ivhioh Suid rloih is attaelwdmnd longitudinal nieniborfs to which said Cloth is attarhrd. one of said longitudinal 'enelnb` movabl)i connected to :said cross: members xo move :about a predeterinined :wie relatiw thru-rio. and ini-aus; for moving said ini'rvablr mein-lar to znlinei, (liv tension ol' anni Pioli; En a xnarator. thtl ronihinal un nlth a rennoahln inrlineil erregen wenn annif n srruen member havinfu" a vlovifiwxxiflsf am tending.' pari, or lnozr r a' it oder o!" .i 'trame or rfviin'ijg ine-li. miel riem and hamm: ide walls. aligns a' bare luoartffil aggnud the lilo will ol' mi? voor or a-v ing and uetaining Said wrt-en -iinl hmz' upwardly extending parte oi llnngrs in- 'aariiljiy of :faul .lon'im irdl,v Mtn; @line parte or meint-ferri ot emi/l srrevn.

16. In a separator, a reinombieinrhned seri-en comprising a screen Inenibrr having ii downwardly extending part or flange at its edge a easing in vwhich said nwinber roeili ently mounted, and an angle or bar mounted in sind easing' beneath the edge nl said ecreen and sustaining the .latten and having` aix upwardly extending! flange or bart at the inner aide of and engagingsail ilangiA of airl srreen lor sustaining the latten.

l?. ln :i separator. a Screen coran-hung n iron member and a bnr or angle on whif'h :voili: eereon member is mounted l'ra'v'uir rioirnirardlv extending; part or llana:` .a wir oz member mounted liaxisrez-rll ol .mid menig beneath Said Screen nieioliA :n i ring. an upwardly extending wall or flungv ben'euth und engaging the mwr side nl' said flange und sustaining! will svi-wn.

18. In :L separating :l rvnlm'nlili, inclined Sreen numpl'ising zi wire m xsli screen vinili ing und u irume un which will Nothing is, Strvtched, comprising un nlilmig frame lmVA ing lnligitudinul klu :Homburg :xml trans verse end lupmliurr; umilimfting said lungiAV tudilml. miiibers and cmnprising ai im or angl@ llwin u fue@ un whirli said "screen ,is mounted and u dciwifnwn'dly uxll'infling flange projecting Fimn Suid fin-e, and n ci f;- ing inclosilig said Hui-een and having fi bai 01' member' beneath :imi smluining smid sumen undcr und ungzlging Suid duwmvzimlly extending iiainge.

19. In a, separator, the zombixmlion with a, removable inclined screen, of a -zising having side walls imflosing said sci-een, bars or angles mounted against Said side wills and Sustaining said screen and having :in upwmdly extending; Flange, lmnenlli will screen :ifI'or-din' ii grama` m' duri fm* im terial leaking plint the miga wf mid amifon.

in :i f1" i i gummi,

Hilfs-ry wir 1115.5 lli'.

ml i: 

